Compare and contrast respiration in fish and humans. What is the goal of respiration? How is the goal accomplished?

image result for describe the various types of gene mutationsghr.nlm.nih.gov

the types of mutations include: missense mutation: this type of mutation is a change in one dna base pair that results in the substitution of one amino acid for another in the protein made by a gene. nonsense mutation: a nonsense mutation is also a change in one dna base pair.

explanation:

it is either c or d and i know for sure it is not a or b